2.8.3
Allowable Cycle Times
Performance test shall conform to AAMI ST8.
2.9
GAS AERATORS
Gas aerators shall be an apparatus that effectively removes residual
ethylene oxide from gas sterilized medical and surgical supplies.
2.9.1
Cabinet
Individual aerator units shall have a welded or riveted cabinet, supported
by a channel steel base provided with leveling shims or feet. Cabinet and
base shall have a factory finish.
2.9.2
Processing Chamber
Chamber shall be welded or riveted stainless steel, or electroplated
aluminum, with stainless steel shelves and stainless steel shelf supports
with stops. The exterior of the chamber shall be insulated with an R-value
of 0.62 (square m) K/W (R 3.5) R 3.5. The insulation shall be secured in
place with thermosetting tape or corrosion and heat resistant straps and
clips. Chamber shall have a perforated panel to facilitate air circulation.
2.9.3
Processing Chamber Door
Door shall be welded or riveted stainless steel, or electroplated aluminum.
The door shall be tightly secured against the chamber's gasket with a
safety interlock. Each door shall have steel, brass, or chromium-plated
metal hinges located to permit swing as indicated. Doors shall be
reversible without any additional welding or use of any special tools. A
silicone rubber gasket shall ensure a tight seal between the door and the
processing chamber.
2.9.4
Automatic Control Unit
On setting of timer and actuating power switch, the aerator shall
automatically heat the load to the operator selected temperature and aerate
the load with heated and filtered air, and time the cycle.
2.9.5
Control and Instrument Panel
Controls and instruments shall be installed in a control panel in a readily
accessible location. Panel shall include:
a.
Power switch, controls On/Off.
b. Cycle phase indicators that operate when the heaters are actuated
and when chamber temperatures are within operating range.
c.
Timer, adjustable, having a range of 16 hours, minimum.
d.
Unit on/off indicating light.
e.
Chart recorder, 24 hour.
f.
Temperature selector.
SECTION 11710
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